<div id="mask" class="ui-mask">
  <div class="mask">
  </div>
</div>
<div id="tip" class="tip-bg" style="height: 640px;background: rgba(0,0,0,0.7); filter:alpha(opacity=40); display: none;">
  <div class="tip">
    <div class="tip-txt tip-font">
      <p class="tip-font"></p>
    </div>
    <div class="tip-btn">
      <div class="tip-btnA tip-font">
      </div>
    </div>
  </div>
</div>